Which of the following is an example of a Schedule 1 drug?

Heroin is classified as a Schedule I drug due to its high potential for abuse and lack of accepted medical use in the United States. Schedule I drugs are characterized by their severe restrictions, indicating that they are considered the most dangerous substances. They often have no currently accepted medical treatment in the U.S. and lack accepted safety for use under medical supervision. This classification underscores the government’s stance on the dangers associated with heroin and similar substances.

In comparison, cocaine, while also a powerful substance with significant abuse potential, is classified as a Schedule II drug due to its accepted medical uses in certain contexts, such as local anesthesia for some surgical procedures. Aspirin and ibuprofen are both over-the-counter medications that are not classified as controlled substances and therefore do not fall under any of the schedules used to categorize drugs based on their potential for abuse and legality.